"It's not difficult, but it's very complex, " said Dave Pelz, the former aerospace engineer turned short-game guru.

WSJ: Tiger Woods Should Credit His Return to No. 1 on Improved Putt

Pelz, a former NASA scientist who holds more than a dozen patents with golf equipment, is a world-renowned short-game instructor.

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Hirzl debuted its first-ever TV commercial last month on the Golf Channel with Dave Pelz speaking for the brand.

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Some short-game instructors, including Dave Pelz, already teach that the stability of an anchored stroke is a significant advantage for most players.

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Pelz has tested this with a machine that shows the pros usually misjudge the line and speed needed to put a ball in the hole.

WSJ: Tiger Woods Should Credit His Return to No. 1 on Improved Putt

Pelz signed on as a cofounder and advisor to VinaGame.

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"With Tiger, after his bad year he started with a new teacher and then he spent 95% of his time on his new swing and not with his putter, " Pelz said.

WSJ: Tiger Woods Should Credit His Return to No. 1 on Improved Putt

Shortly after meeting Le through a friend, he teamed him with a serial entrepreneur from Los Angeles, Bryan Pelz, who had moved to Ho Chi Minh City eight years ago to work with IDG on building businesses.

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